Home / 14,000.31-21,000.47-3,611.25

Finding the Fourth Proportional to 14,000.31, 21,000.47 and 3,611.25

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Solution

The fourth proportional to 14,000.31, 21,000.47 and 3,611.25 is: 5,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.31 : 21,000.47 = 3,611.25 : x
  2. Step 2: Convert to fraction form
    14,000.31/21,000.47 = 3,611.25/x
  3. Step 3: Cross multiply
    14,000.31x = 21,000.47 × 3,611.25
  4. Step 4: Simplify right side
    14,000.31x = 75,837,929.23
  5. Step 5: Solve for x
    x = 75,837,929.23/14,000.31
  6. Step 6: Final answer
    x = 5,416.88

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.